EP 0340476 B1 19930616 - ACCELERATION SENSOR
Title (en)
ACCELERATION SENSOR
Publication
Application
Priority
JP 8844788 A 19880411
Abstract (en)
[origin: EP0340476A1] When an acceleration sensor is used, it is attached to a measured object to detect an acceleration applied to the object. The acceleration sensor includes a package (100, 600) having at least one chamber (A). A sensor element is disposed in the chamber and has a portion (4a) which vibrates in response to the acceleration. Damping liquid (700) is sealed within the package and has a quantity which allows the sensor element to be submerged in the damping liquid (700) and which allows a predetermined quantity of gas (800) to remain in the package. The gas (800) absorbs a thermally-induced volume change of the damping liquid (700). In the absence of the acceleration, a gas bubble is prevented from separating from the gas (800). In addition, the gas bubble is prevented from staying in the chamber (A).
IPC 1-7
IPC 8 full level
G01P 1/00 (2006.01)
CPC (source: EP KR US)
G01P 1/003 (2013.01 - EP US); G01P 15/03 (2013.01 - KR)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0340476 A1 19891108; EP 0340476 B1 19930616; DE 68907121 D1 19930722; DE 68907121 T2 19940127; KR 900016762 A 19901114; KR 920007252 B1 19920828; US 4967597 A 19901106
DOCDB simple family (application)
EP 89106211 A 19890407; DE 68907121 T 19890407; KR 890004762 A 19890411; US 33638189 A 19890411